#pragma once

#include <iostream>
#include <string>
#include <cstring>
#include <string.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include "protocol.hpp"

#define NUM 1024
class CalClient
{
public:
    CalClient(const std::string &serverip, const uint16_t &serverport)
        : _sock(-1), _serverip(serverip), _serverport(serverport)
    {
    }
    void initClient()
    {
        _sock = socket(AF_INET, SOCK_STREAM, 0);
        if (_sock < 0)
        {
            std::cerr << "socket creat error" << std::endl;
            exit(2);
        }
        // 要发起链接
        // connect
    }
    void start()
    {
        struct sockaddr_in server;
        memset(&server, 0, sizeof(server));
        server.sin_family = AF_INET;
        server.sin_port = htons(_serverport);
        server.sin_addr.s_addr = inet_addr(_serverip.c_str());

        if (connect(_sock, (struct sockaddr *)&server, sizeof(server)))
        {
            std::cerr << "socket connect error" << std::endl;
        }
        else
        {
            std::string line;
            std::string inbuffer;
            while (true)
            {
                std::cout << "Mycal>>> ";
                std::getline(std::cin, line);

                Request req = ParseLine(line);
                std::string content;
                req.serialize(&content);
                std::string send_string=enLength(content);
                send(_sock,send_string.c_str(),send_string.size(),0);

                std::string package,text;
                if(!recvPackage(_sock,inbuffer,&package)) continue;
                if(!deLength(package,&text)) continue;

                Response resp;
                resp.deserialize(text);
                std::cout<<"exitCode: "<<resp.exitcode<<std::endl;
                std::cout<<"result: "<<resp.result<<std::endl;
            }
        }
    }
    Request ParseLine(const std::string &line)
    {
        int status = 0;
        int i = 0;
        int cnt = line.size();
        std::string left, right;
        char op;
        while (i < cnt)
        {
            switch (status)
            {
            case 0:
            {
                if (!isdigit(line[i]))
                {
                    op = line[i];
                    status = 1;
                }
                else
                    left.push_back(line[i++]);
                break;
            }
            case 1:
                i++;
                status = 2;
                break;
            case 2:
                right.push_back(line[i++]);
                break;
            }
        }
        std::cout << std::stoi(left) << " " << std::stoi(right) << " " << op << std::endl;
        return Request(std::stoi(left), std::stoi(right), op);
    }
    ~CalClient()
    {
        if (_sock >= 0)
            close(_sock);
    }

private:
    int _sock;
    std::string _serverip;
    uint16_t _serverport;
};